| ### radeon_noop backend |
| |
| This implements the minimum of the radeon kernel driver in order to make shader-db work. |
| The submit ioctl is stubbed out to not execute anything. |
| |
| Export `MESA_LOADER_DRIVER_OVERRIDE=r300 |
| LD_PRELOAD=$prefix/lib/libradeon_noop_drm_shim.so`. (or r600 for r600-class HW) |
| |
| By default, rv515 is exposed. The chip can be selected an environment |
| variable like `RADEON_GPU_ID=CAYMAN` or `RADEON_GPU_ID=0x6740`. |
| |
| ### amdgpu_noop backend |
| |
| This implements the minimum of the amdgpu kernel driver. The submit ioctl is |
| stubbed out to not execute anything. |
| |
| Export `LD_PRELOAD=$prefix/lib/libamdgpu_noop_drm_shim.so`. |
| |
| To specify the device to expose, set the environment variable `AMDGPU_GPU_ID` |
| to |
| |
| - `renoir` to expose a `CHIP_RENOIR` device |
| - `raven` to expose a `CHIP_RAVEN` device |
| - `stoney` to expose a `CHIP_STONEY` device |
| |
| Further names follow the `CHIP_*` enum values. By default, the `CHIP_RENOIR` |
| device is exposed. |
| |
| To add a new device, `amdgpu_devices.c` needs to be modified. |
| `amdgpu_dump_states` can be used to dump the relevant states from a real |
| device. |
